Trend Extension Chart View - Metasys - LIT-12011942 - "" - Software Application - Metasys Open Data Server - 10.1

Metasys Open Data Server Help
Product name
Metasys Open Data Server
Document type
User Guide
Document number
LIT-12011942
Version
10.1
Revision date
14/10/2019

The Chart view allows you to view data samples in a graphical format and retrieve new trend data. You can zoom, unzoom, and pan within the Chart view. You can also specify the X-axis and Y-axis ranges.

Table 1. Chart View

Button

Name

Description

Update

When initially displayed, the Trend Extension view shows the data samples currently in the local trend buffer. Click Update to retrieve and display new data samples (for example, any trend buffer data later than the currently displayed samples). The Update button adds the new samples to the display without removing the old samples.

Note: Gaps may appear in the data if the trend buffer has rolled over since the last update. If you wish to clear the Trend Extension view and re-display only those samples currently in the trend buffer, use the Refresh Current Tab menu option (right-click or Action menu).

(Zoom)

(Normal)

Zoom

Toggles the mouse behavior for the chart between zoom mode and normal mode.

While in zoom mode:

  • drag the mouse over an area of the chart to zoom in on that area.
  • click Zoom to exit zoom mode and restore the mouse to normal mode.
  • left-click to zoom out one level.

When you exit zoom mode, the chart remains at the current zoom level. Use the Restore button to fully zoom out on the chart.

Note:
  • You cannot pan while the mouse is in zoom mode.
  • You can also zoom and unzoom in normal mode by using the Shift key and the mouse. To zoom, hold the Shift key down while dragging the mouse across the chart. To zoom out one level, left-click the mouse while holding the shift key down.

Restore

Allows you to return to an unzoomed view and switches the mouse back to normal mode if the chart’s zoom mode is active.
 

Pan

Allows you to pan the view of the chart vertically or horizontally by dragging the mouse across a zoomed chart. Panning is not available for unzoomed charts or when zoom mode is active. To pan left or right, drag the mouse over the X-axis. To pan up or down, drag the mouse over the Y-axis.

Points Line

Displays the data using lines and point markers. This is the default.

Area

Displays the data using an area chart.

Bar

Displays the data using a bar chart.

Note: Only use the bar chart when the number of data samples can reasonably be expected to display as bars. If too many data samples exist when you click this option, the display becomes unstable and fails to properly update the screen. To recover, select any other display option.

Points

Displays the data using markers, with no lines.

Line

Displays the data using lines, with no markers.